Difficult recovery, even missed for Holger Rune (11th) and Félix Auger-Aliassime (6th).
The two players were eliminated from the start of the ATP tournament in Adelaide, two weeks before the start of the Australian Open (January 16-29).
The Dane Rune, who was playing his first match since his historic coronation against Djokovic in Paris on November 6, was beaten by the Japanese Nishioka (36th) after winning the first set (6-2, 4-6, 4- 6).
The Canadian Auger-Aliassime was defeated by the Australian Alexis Popyrin (120th) with the score of 6-4, 7-6 (7-5).